Sustainable Feedstocks and Challenges in Biodiesel Production: An Advanced Bibliometric Analysis

Abstract

Biodiesel can be produced from vegetable oils, animal fats, frying oils, and from microorganism-synthesized oils. These sources render biodiesel an easily biodegradable fuel. The aim of this work was to perform an advanced bibliometric analysis of primary studies relating to biodiesel production worldwide by identifying the key countries and regions that have shown a strong engagement in this area, and by understanding the dynamics of their collaboration and research outputs. Additionally, an assessment of the main primary feedstocks employed in this research was carried out, along with an analysis of the current and future trends that are expected to define new paths and methodologies to be used in the manufacture of biodegradable and renewable fuels. A total of 4586 academic outputs were selected, including peer-reviewed research articles, conference papers, and literature reviews related to biodiesel production, in the time period spanning from 2010 to 2021. Articles that focused on feedstocks for the production of biodiesel were also included, with a search that returned 330 papers. Lastly, 60 articles relating to biodiesel production via sewage were specifically included to allow for an analysis of this source as a promising feedstock in the future of the biofuel market. Via the geocoding and the document analyses performed, we concluded that China, Malaysia, and India are the largest writers of articles in this area, revealing a great interest in biofuels in Asia. Additionally, it was noted that environmental concerns have caused authors to conduct research on feedstocks that can address the sustainability challenges in the production of biodiesel.

Evolving sustainable energy technologies and assessments through global research networks: advancing the role of blue hydrogen for a cleaner future

“…At the heart of this study, we have bibliometric analysis as a fundamental tool to determine the number of scientic productions in a clear and detailed way, an accessible alternative to collecting and evaluating these data. [42][43][44][45][46][47][48] Thus, this analysis covers authors, citations, journals, institutions, and other emerging scientic productions in blue hydrogen production. Therefore, to carry out the bibliometric analysis, we have as a crucial part of this study the use of the database obtained through the publications gathered in the collection of the Web of Science website, currently owned by Clarivate Analytics, which has around 74.8 million academic productions, according to 2020 data.…”

Biodiesel production in India: Prospects, challenges, and sustainable directions

“…rapid growth (Sales et al, 2022). Due to the need for economically feasible large-scale cultivation, commercial cultivation of these entities in India is difficult.…”

“…While microalgae have global potential, India is just starting to exploit it as a biodiesel feedstock. Photosynthetic microalgae are known for their oil concentration and rapid growth (Sales et al, 2022). Due to the need for economically feasible large‐scale cultivation, commercial cultivation of these entities in India is difficult.…”

Research Progress and Trends on Utilization of Lignocellulosic Residues as Supports for Enzyme Immobilization via Advanced Bibliometric Analysis

“…As enzymes demand very specific technology and, a growing industrial demand, these bioproducts have high market value [24,[36][37][38][39][40][41][42][43][44][45][46][47]. Thus, a new area of research emerged, where studies have been carried out to enable enzyme immobilization [48][49][50][51][52].…”